MISTAKEN IDENTITY:Brigid Brannagh stars as a single mom who gets romantic emails intended for a co-worker in the new romantic comedy “A Crush on You” at 9 and 11 p.m. on Hallmark.

SERIES

My Ghost Story: The paranormal series ends its season (7 p.m. Biography).

SPECIALS

McEnroe/Borg: Fire & Ice: This new special documents the rivalry between tennis players John McEnroe and Bjorn Borg during the '70s and '80s (10 p.m. HBO).

MOVIES

A Fistful of Dollars: AMC moves from Clint Eastwood's “Dirty Harry” films to his early Western era, starting with 1964's “A Fistful of Dollars” (5:30 p.m. AMC).

Field of Vision: In this new family drama, a high school's top quarterback (Tony Oller) stumbles across video footage of his teammates bullying a new student (Joseph Adler). He wants to turn them in, but he also wants the team to win the state championship. Faith Ford and Philip Casnoff also star (8 p.m. NBC).